Item Number	Date	Description
More info . . .	1418	30 December 1931	West Neebish Channel, Course 6 Rock Cut: General view to southwest, C.S. 80
More info . . .	1419	30 December 1931	West Neebish Channel, Course 6 Rock Cut: General view to northeast, C.S. 82
More info . . .	1420	30 December 1931	West Neebish Channel, Course 6 Rock Cut: General view to northeast, C.S. 63
More info . . .	1421	30 December 1931	West Neebish Channel, Course 6 Rock Cut: View of east dumping ground looking east from C.S. 80
More info . . .	1422	30 December 1931	West Neebish Channel, Course 6 Rock Cut: View of east dumping ground, looking east from CS 80
More info . . .	1423	21 January 1932	U.S. Power Plant Extension: Looking west from old tailrace dyke, showing lower cofferdam
More info . . .	1424	21 January 1932	U.S. Power Plant Extension: Looking east into draft pit from tramway over sluice gate piers
More info . . .	1425	21 January 1932	U.S. Power Plant Extension: Looking south into draft pit, note man pointing to seam in rock just below old power house footing
More info . . .	1426	21 January 1932	U.S. Power Plant Extension: Draft pit, view looking southwest showing leakage through rock under dyke from old power house to sluice gate No. 1
More info . . .	1427	8 February 1932	U.S. Power Plant Extension: View looking south into draft chamber showing inside form for draft tube
More info . . .	1428	20 February 1932	U.S. Power Plant Extension: View looking south showing wheel pit floor reinforcing and draft tube liner
More info . . .	1429	20 February 1932	U.S. Power Plant Extension: View looking southwest showing Band II, reinforcing of wheel pit floor
More info . . .	1430	18 February 1932	West Neebish Channel, Course 6 Rock Cut: General view looking south from upper coffer dam
More info . . .	1431	18 February 1932	West Neebish Channel, Course 6 Rock Cut: View looking northeast from C.S. 30 showing ramp to substituted dumping grounds
More info . . .	1432	18 February 1932	West Neebish Channel, Course 6 Rock Cut: Line drilling along west wall by drill truck with 8 drills on quarry bar

Showing 1456 to 1470 of 1780 items

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• 51
• 52
• 53
• 54
• 55
• 56
• 57
• 58
• 59
• 60
• 61
• 62
• 63
• 64
• 65
• 66
• 67
• 68
• 69
• 70
• 71
• 72
• 73
• 74
• 75
• 76
• 77
• 78
• 79
• 80
• 81
• 82
• 83
• 84
• 85
• 86
• 87
• 88
• 89
• 90
• 91
• 92
• 93
• 94
• 95
• 96
• 97
• 98
• 99
• 100
• 101
• 102
• 103
• 104
• 105
• 106
• 107
• 108
• 109
• 110
• 111
• 112
• 113
• 114
• 115
• 116
• 117
• 118
• 119